Mountains which are subjected to weathering and erosion for a long time are lowered down:

1. Old fold mountains
2. Volcanic plateaus
3. Relict mountains
4. Intermontane plateaus

Which of the following are correctly matched?

1. Young fold mountains: Himalayas, Alps
2. Old fold mountains : Urals, Aravalli
3. Residual mountains : Nilgiri, Rajmahal Hills
4. All of the above.

A piece of land reclaimed from the sea or lake:

1. Sealand
2. Iceland
3. Lakeland
4. Polder

The plains that are formed due to uplift or subsidence of land are called:

1. Structural plain
2. Depositional plain
3. Plain
4. Landform